我是matplotlib的新手,我正在尝试制作一个grib文件列表的动画。
我写了这段代码:
import pygrib
from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt
import numpy as np
import matplotlib.animation as animation
import os
m = Basemap(projection='robin', resolution = 'l', area_thresh = 1000.0,
lat_0=0, lon_0=-130)
m.drawcoastlines()
m.drawcountries()
m.fillcontinents(color = 'gray')
m.drawmapboundary()
m.drawmeridians(np.arange(0, 360, 30))
m.drawparallels(np.arange(-90, 90, 30))
for grib in os.listdir("path"):
grbs=pygrib.open(grib)
for grb in grbs:
print grb
lats, lons = grb.latlons()
data=grb.values
x, y = m(lons,lats)
norm=colors.LogNorm())
m.drawcoastlines()
m.drawcountries()
m.fillcontinents(color = 'gray')
m.drawmapboundary()
m.drawmeridians(np.arange(0, 360, 30))
m.drawparallels(np.arange(-90, 90, 30))
cmap = plt.get_cmap('YlOrBr')
cs = m.pcolormesh(x,y,data,shading='flat',cmap=cmap)
plt.colorbar(cs,orientation='vertical', shrink=0.3)
plt.show()
它可以打开一个我必须关闭的窗口,然后打开一个新窗口。
我想使用matplotlib.animation
的漂亮动画:我会改变地图上的凹凸并将其显示为时间序列。
我试试这个:
m = Basemap(projection='robin', resolution = 'l', area_thresh = 1000.0,
lat_0=0, lon_0=-130)
m.drawcoastlines()
m.drawcountries()
m.fillcontinents(color = 'gray')
m.drawmapboundary()
m.drawmeridians(np.arange(0, 360, 30))
m.drawparallels(np.arange(-90, 90, 30))
#reading the gribs files
griblist = os.listdir("path")
def animate (i):
global griblist
for grib in griblist:
grbs=pygrib.open(grib)
for grb in grbs:
grb
lats, lons = grb.latlons()
x, y = m(lons, lats)
data = grb.values
cmap = plt.get_cmap('YlOrBr')
cs = m.pcolormesh(x,y,data,shading='flat',cmap=cmap)
plt.colorbar(cs,orientation='vertical', shrink=0.5)
plt.title('UV biological effective dose')
anim = animation.FuncAnimation(plt.gcf(), animate,
frames=len(os.listdir("/home/gloria/UV_CAMS")), interval=500, blit=True)
plt.show()
但我收到了这个错误:
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1540, in __call__
return self.func(*args)
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 590, in callit
func(*args)
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 373, in idle_draw
self.draw()
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 354, in draw
FigureCanvasAgg.draw(self)
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_agg.py", line 474, in draw
self.figure.draw(self.renderer)
File "/usr/lib/python2.7/dist-packages/matplotlib/artist.py", line 61, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/figure.py", line 1165, in draw
self.canvas.draw_event(renderer)
File "/usr/lib/python2.7/dist-packages/matplotlib/backend_bases.py", line 1809, in draw_event
self.callbacks.process(s, event)
File "/usr/lib/python2.7/dist-packages/matplotlib/cbook.py", line 563, in process
proxy(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/cbook.py", line 430, in __call__
return mtd(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/animation.py", line 648, in _start
self._init_draw()
File "/usr/lib/python2.7/dist-packages/matplotlib/animation.py", line 1193, in _init_draw
self._draw_frame(next(self.new_frame_seq()))
File "/usr/lib/python2.7/dist-packages/matplotlib/animation.py", line 1214, in _draw_frame
for a in self._drawn_artists:
TypeError: 'NoneType' object is not iterable
如果我需要告诉Python使用函数animate()
迭代思考一些变量,我得到了什么。
我不熟悉定义函数,我陷入了代码的这一部分:我无法理解我的代码在哪里错了......
有些帮助吗? 非常感谢!!
答案 0 :(得分:0)
要摆脱错误,请设置array(2) {
[0]=>
string(30) "/something/"
[1]=>
string(71) "/something\?t[p]/"
}
PHP Notice 'yii\base\ErrorException' with message 'Array to string conversion'
。
除此之外,动画当前不会为任何动画制作动画,因为对于每个帧,您都会遍历所有文件。相反,您希望每帧显示一个文件。
blit=False